<template>
  <div>
    <h3>课程列表</h3>
    <div>
      <el-button type="success" size="small" @click="$router.push('/courses/create')">创建课程</el-button>
    </div>
    <el-table :data="data.data" border stripe>  <!-- elta -->
      <el-table-column v-for="(field, name) in fields"
        :prop="name"
        :key="name"
        :label="field.label"
        :width="field.width">
      </el-table-column>
      <el-table-column     
          label="操作"
          :width="200">  <!-- eltac -->
          <template v-slot="{row}">
            <el-button type="success" size="small" @click="$router.push(`/courses/edit/${row._id}`)">编辑</el-button>
            <el-button type="danger" size="small" @click="remove(row)">删除</el-button>
          </template>
        </el-table-column>
    </el-table>
    
  </div>
</template>

<script lang="ts">
import { Vue, Component } from "vue-property-decorator";
@Component({})
export default class CourseList extends Vue {
  data = {};
  fields = {
    _id:{label: 'ID'},
    name:{label: '课程名称'},
    cover:{label: '课程封面图'}
  }

  async fetch() {
    const res = await this.$http.get('courses')
    this.data = res.data
  }

  async remove(row){
    try{
      await this.$confirm('是否确认删除?')
    } catch(e){
      return
    }
    await this.$http.delete(`courses/${row._id}`)
    this.$message.success('删除成功')
    this.fetch()
  }

  created() {
    this.fetch()
  }
}
</script>

<style>
</style>